CN104372780A - Continuous lifting mechanism of self-elevating platform - Google Patents
Continuous lifting mechanism of self-elevating platform Download PDFInfo
- Publication number
- CN104372780A CN104372780A CN201410606489.7A CN201410606489A CN104372780A CN 104372780 A CN104372780 A CN 104372780A CN 201410606489 A CN201410606489 A CN 201410606489A CN 104372780 A CN104372780 A CN 104372780A
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- Prior art keywords
- level
- lifting
- plug housing
- unit
- ascend
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
- E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0809—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering the equipment being hydraulically actuated
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0836—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks
- E02B17/0872—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks with locking pins engaging holes or cam surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a continuous lifting mechanism of a self-elevating platform. The continuous lifting mechanism comprises at least one first-level lifting unit and at least one second-level lifting unit, lifting rails are arranged on the surface of a pile leg, pin holes are formed in each lifting rail at intervals, and the first-level lifting units and the second-level lifting units are arranged on the corresponding lifting rails and can vertically move along the corresponding lifting rails. The continuous lifting mechanism solves the problem that a conventional single-action hydraulic plug pin type lifting mechanism is low in lifting speed, and the lifting speed of the continuous lifting mechanism is about one time that of the conventional single-action hydraulic plug pin type lifting mechanism. The maritime environment is complex and changeable, and the fast lifting platform can improve operation efficiency and safety. The continuous lifting mechanism is simple in structure and convenient to manufacture, and the manufacturing cost and difficulty of the continuous lifting mechanism are greatly reduced compared with those of a pinion-and-rack type lifting mechanism. According to the continuous lifting mechanism, the supporting force can be two times of lifting force, and the continuous lifting mechanism is particularly suitable for the heavy-duty work platform.
Description
Technical field
The present invention relates to Self-raising platform lifting mechanism, be applicable to the jack-up unit in self-lifting offshore wind power job platform and other ocean engineering fields, by hydraulic pressure or electric-powered, the spud leg of platform is transferred to sea bed, and main platform body lifting can be gone out the water surface.After operation completes, platform can be put back to the water surface and pack up spud leg.
Background technology
The jack-up unit in offshore wind farm job platform and other ocean engineering fields all needs to adopt the spud leg of elevating mechanism band moving platform to move up and down.
The elevating mechanism using more form to be pinion and-rack on the market at present, it installs multiple sets of teeth bar on spud leg, then drives rack drives spud leg to move up and down by the gear mechanism on platform.Gear-rack type lifter structure, high for the material of rack and pinion mechanism, required precision, manufacturing cost is high.
The form of another kind of elevating mechanism is one action hydraulic bolt formula on the market.One action hydraulic bolt formula elevating mechanism, after each oil cylinder stroke run, has all needed oil cylinder zero load to regain, has completed once " changing hands ", so its rising or falling speed is slower.
Summary of the invention
For the problems referred to above, the invention provides a kind of jack-up unit continuous elevator structure, to solve the problems of the prior art.
To achieve these goals, technical scheme of the present invention is as follows:
Jack-up unit continuous elevator structure, it is characterized in that, comprise at least one group of one-level lifting unit, at least one group of two grade of ascend and descend unit, spud leg surface is provided with fluctuating orbit, described fluctuating orbit is arranged at intervals with pin hole, and described one-level lifting unit, two grade of ascend and descend unit are separately positioned on corresponding fluctuating orbit and also can move up and down along it;
Often organize one-level lifting unit and comprise one-level hydraulic jack and one-level plug housing, the cylinder body end of one-level hydraulic jack is fixedly connected on platform, the tailpiece of the piston rod of one-level hydraulic jack is fixedly connected with one-level plug housing, one-level plug housing is driven to move up and down along fluctuating orbit, one-level plug housing is arranged on described fluctuating orbit, and can move up and down along fluctuating orbit; One-level plug housing is provided with the latch corresponding with pin hole;
Often organize two grade of ascend and descend unit and comprise 2-level hydraulic oil cylinder and secondary plug housing, the cylinder body end of 2-level hydraulic oil cylinder is fixedly connected on platform, the tailpiece of the piston rod of 2-level hydraulic oil cylinder is fixedly connected with secondary plug housing, secondary plug housing is driven to move up and down along fluctuating orbit, secondary plug housing is arranged on described fluctuating orbit, and can move up and down along fluctuating orbit; Secondary plug housing is provided with the latch corresponding with pin hole.
In a preferred embodiment of the invention, often organize one-level lifting unit and comprise two one-level hydraulic jacks and an one-level plug housing, the tailpiece of the piston rod of two one-level hydraulic jacks is connected with the two ends of one-level plug housing respectively; Often organize two grade of ascend and descend unit and comprise two 2-level hydraulic oil cylinders and a secondary plug housing, the tailpiece of the piston rod of two 2-level hydraulic oil cylinders is connected with the two ends of secondary plug housing respectively.
In a preferred embodiment of the invention, one-level lifting unit has two groups, and two grade of ascend and descend unit has two groups, and four groups of lifting units are distributed on the external surface of spud leg, and two groups of one-level lifting units are relative, and two groups of two grade of ascend and descend unit are relative.
In a preferred embodiment of the invention, described fluctuating orbit is " π " type structure connected into by two panels side gusset and a slice panel, and described pin hole is arranged on panel by pitch.
The beneficial effect that technical solution of the present invention is brought:
The invention solves the problem that conventional one action hydraulic bolt formula elevating mechanism rising or falling speed is slow, its rising or falling speed more conventional one action hydraulic bolt formula elevating mechanism improves about one times.Maritime environment is complicated and changeable, and lift platform can improve efficiency and the safety of operation fast.
Structure of the present invention is simple, easily manufactured, compares gear-rack type lifter structure and significantly reduces manufacturing cost and difficulty.
Support force of the present invention can reach the twice of lifting force, is particularly useful for the job platform of heavy duty.
The detailed description and obtaining that feature of the present invention can consult the graphic and following better embodiment of this case is well understood to.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of one embodiment of the invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the schematic cross section of spud leg.
Wherein, 1, spud leg; 2, secondary plug housing; 3,2-level hydraulic oil cylinder; 4, platform; 5, one-level plug housing; 6, one-level hydraulic jack; 7, fluctuating orbit; 71, panel; 72, side gusset; 73, pin hole.
detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with specific embodiment.
See Fig. 1-3, spud leg 1 is steel circular cylindrical spud leg (also can adopt square spud leg), and inside is provided with reinforcement gusset.Four groups of fluctuating orbits, 7, four groups of fluctuating orbit 7 circumference uniform distributions are provided with on the surface of spud leg 1 on the surface of spud leg 1.Fluctuating orbit 7 is " π " type structure connected into by two panels side gusset 72 and a slice panel 71, and pin hole 73 is arranged on panel 71 by pitch.Fluctuating orbit both can as the guiding of plug housing, also can as the reinforcement of spud leg.
Two groups of one-level lifting units, two groups of two grade of ascend and descend unit are separately positioned on corresponding fluctuating orbit and also can move up and down along it.
Often organize one-level lifting unit and comprise two one-level hydraulic jacks 6 and an one-level plug housing 5, the cylinder body end of two one-level hydraulic jacks 6 is fixedly connected on the deck of platform 4, the tailpiece of the piston rod of two one-level hydraulic jacks 6 is connected with the two ends of one-level plug housing 5 respectively, drives one-level plug housing 5 to move up and down along fluctuating orbit 7.One-level plug housing is arranged on fluctuating orbit, and can move up and down along fluctuating orbit; Plug housing is steel welding structure, and the latch on plug housing can be coupled with the pin hole 73 on spud leg.Two groups of one-level lifting units, centered by spud leg, are arranged symmetrically with.
Often organize two grade of ascend and descend unit and comprise two 2-level hydraulic oil cylinders 3 and a secondary plug housing 2, the cylinder body end of two 2-level hydraulic oil cylinders 3 is fixedly connected on platform 4, the tailpiece of the piston rod of two 2-level hydraulic oil cylinders 3 is connected with the two ends of secondary plug housing 2, secondary plug housing is driven to move up and down along fluctuating orbit, secondary plug housing is arranged on described fluctuating orbit, and can move up and down along fluctuating orbit; Secondary plug housing is provided with the latch corresponding with pin hole.Two groups of two grade of ascend and descend unit, centered by spud leg, are arranged symmetrically with.
The operating principle of the present invention under each operating mode:
A, underloading put an operating mode
This operating mode is to be transferred to sea bed fast by spud leg.Under this operating mode, the latch on two groups of one-level lifting units and spud leg are thrown off, and do not participate in action.Latch on one group of two grade of ascend and descend unit inserts spud leg pin hole, being shunk by oil cylinder drives spud leg to transfer, latch simultaneously on another group two grade of ascend and descend unit and spud leg are thrown off, and moved upward along the track zero load on spud leg by hydraulic oil cylinder driving, at the end of that group two grade of ascend and descend unit oil cylinder stroke moved downward, that group two grade of ascend and descend unit oil cylinder stroke that moves upward rises from completely, now insert the latch of that group two grade of ascend and descend unit that moves upward, throw off the latch of another group two grade of ascend and descend unit simultaneously.After latch action completes, hoist cylinder stroke stretches out two grade of ascend and descend unit completely and drives spud leg to move downward, and another group zero load moves upward, and so repeatedly performs, to reach the object of putting stake continuously fast.
B, piling peaceful operating mode
This operating mode is that platform is carried away the water surface by the downward piling of elevating mechanism.Under this operating mode, the latch of two groups of one-level lifting units inserts spud leg, and its hoist cylinder stretches out slightly, plays compensation hydraulic effect.Latch on two groups of two grade of ascend and descend unit is all thrown off, and upwards no load movement, when its hoist cylinder stroke stretches out completely, latch inserts spud leg, then throw off the latch of two groups of one-level lifting units, two groups of two grade of ascend and descend unit press down spud leg jointly until oil cylinder stroke is regained completely.After two grade of ascend and descend unit stroke is regained completely, insert one-level lifting unit latch, throw off two grade of ascend and descend unit latch, then two grade of ascend and descend unit continuation zero load moves upward, and so repeatedly performs, has reached the object of heavily loaded piling.
C, decline platform operating mode
Platform is dropped to the water surface by decline platform operating mode and elevating mechanism.Under this operating mode, the latch of two groups of one-level lifting units inserts spud leg, and its hoist cylinder stretches out slightly, plays compensation hydraulic effect.Latch on two groups of two grade of ascend and descend unit is all thrown off, and downward no load movement, when its hoist cylinder stroke is regained completely, latch inserts spud leg, and then throw off the latch of two groups of one-level lifting units, two groups of two grade of ascend and descend unit move upward jointly, transfer platform, until oil cylinder stroke stretches out completely.After two grade of ascend and descend unit stroke stretches out completely, insert one-level lifting unit latch, throw off two grade of ascend and descend unit latch, then two grade of ascend and descend unit continuation zero load moves downward, and so repeatedly performs, has reached the object of decline platform.Lower to contrary for platform operating mode sequence of movement and piling peaceful operating mode.
D, withdrawal spud leg operating mode
This operating mode is after platform is lowered to water, is regained fast in platform by spud leg.Under this operating mode, the latch on two groups of one-level lifting units and spud leg are thrown off, and do not participate in action.Latch on one group of two grade of ascend and descend unit inserts spud leg pin hole, being shunk by oil cylinder drives spud leg upwards to regain, latch simultaneously on another group two grade of ascend and descend unit and spud leg are thrown off, and moved downward along the track zero load on spud leg by hydraulic oil cylinder driving, at the end of that group two grade of ascend and descend unit oil cylinder stroke moved upward, move downward that group two grade of ascend and descend unit oil cylinder stroke to regain completely, now insert the latch moving downward that group two grade of ascend and descend unit, throw off the latch of another group two grade of ascend and descend unit simultaneously.After latch action completes, hoist cylinder stroke is regained two grade of ascend and descend unit completely and is driven spud leg to move upward, and another group zero load moves downward, and so repeatedly performs, to reach the object of putting stake continuously fast.Regaining spud leg operating mode sequence of movement and underloading, to put an operating mode contrary.
E, working condition
When the platform emersion water surface starts operation, because operation or stormy weather can cause huge additional load to platform, the support force that this operating mode needs elevating mechanism can provide enough, is firmly supported on platform on spud leg, and this support force is generally much larger than the lifting force of platform.Under this operating mode, the latch of two groups of one-level lifting units and two groups of two grade of ascend and descend unit all inserts in the pin hole on spud leg, and four groups of lifting units participate in support platform jointly, can provide the support force doubling lifting force.
It is pointed out that on spud leg, the quantity of fluctuating orbit is not limited only to 4 groups, spud leg is established 2 groups, 3 groups, 6 groups of fluctuating orbits are the protection domain of patent.Use 4 groups independently lifting unit realize folding and unfolding spud leg fast, peaceful of piling, transfer the operating mode of platform and support platform operation and identity function.The form of 2 groups, 3 groups, 6 groups these lifting units is adopted to be the protection domain of patent.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and manual; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (4)
1. jack-up unit continuous elevator structure, it is characterized in that, comprise at least one group of one-level lifting unit, at least one group of two grade of ascend and descend unit, spud leg surface is provided with fluctuating orbit, described fluctuating orbit is arranged at intervals with pin hole, and described one-level lifting unit, two grade of ascend and descend unit are separately positioned on corresponding fluctuating orbit and also can move up and down along it;
Often organize described one-level lifting unit and comprise one-level hydraulic jack and one-level plug housing, the cylinder body end of one-level hydraulic jack is fixedly connected on platform, the tailpiece of the piston rod of one-level hydraulic jack is fixedly connected with one-level plug housing, one-level plug housing is driven to move up and down along fluctuating orbit, one-level plug housing is arranged on described fluctuating orbit, and can move up and down along fluctuating orbit; One-level plug housing is provided with the latch corresponding with pin hole;
Often organize described two grade of ascend and descend unit and comprise 2-level hydraulic oil cylinder and secondary plug housing, the cylinder body end of 2-level hydraulic oil cylinder is fixedly connected on platform, the tailpiece of the piston rod of 2-level hydraulic oil cylinder is fixedly connected with secondary plug housing, secondary plug housing is driven to move up and down along fluctuating orbit, secondary plug housing is arranged on described fluctuating orbit, and can move up and down along fluctuating orbit; Secondary plug housing is provided with the latch corresponding with pin hole.
2. jack-up unit continuous elevator structure according to claim 1, it is characterized in that, often organize one-level lifting unit and comprise two one-level hydraulic jacks and an one-level plug housing, the tailpiece of the piston rod of two one-level hydraulic jacks is connected with the two ends of one-level plug housing respectively; Often organize two grade of ascend and descend unit and comprise two 2-level hydraulic oil cylinders and a secondary plug housing, the tailpiece of the piston rod of two 2-level hydraulic oil cylinders is connected with the two ends of secondary plug housing respectively.
3. jack-up unit continuous elevator structure according to claim 1, it is characterized in that, one-level lifting unit has two groups, two grade of ascend and descend unit has two groups, four groups of lifting units are distributed on the external surface of spud leg, and two groups of one-level lifting units are relative, and two groups of two grade of ascend and descend unit are relative.
4. jack-up unit continuous elevator structure according to claim 1, is characterized in that, described fluctuating orbit is " π " type structure connected into by two panels side gusset and a slice panel, and described pin hole is arranged on panel by pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606489.7A CN104372780A (en) | 2014-11-03 | 2014-11-03 | Continuous lifting mechanism of self-elevating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606489.7A CN104372780A (en) | 2014-11-03 | 2014-11-03 | Continuous lifting mechanism of self-elevating platform |
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| Publication Number | Publication Date |
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| CN104372780A true CN104372780A (en) | 2015-02-25 |
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| CN201410606489.7A Pending CN104372780A (en) | 2014-11-03 | 2014-11-03 | Continuous lifting mechanism of self-elevating platform |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672236A (en) * | 2016-04-14 | 2016-06-15 | 上海尚鉴机械工程有限公司 | Pin type rapid lifting mechanism and lifting method thereof |
| CN105804038A (en) * | 2016-05-16 | 2016-07-27 | 西伯瀚（上海）海洋装备科技有限公司 | Double-layer dynamic ring beam hydraulic plug pin type cylindrical pile leg continuous lifting device |
| CN105862699A (en) * | 2016-06-13 | 2016-08-17 | 广东精铟海洋工程股份有限公司 | Pin type continuous lifting system for offshore platform and lifting method thereof |
| CN105887787A (en) * | 2016-05-30 | 2016-08-24 | 上海振华重工(集团)股份有限公司 | Hydraulic pin hole type lifting system |
| CN106087931A (en) * | 2016-07-15 | 2016-11-09 | 武汉船用机械有限责任公司 | Combined type screw thread lowering or hoisting gear |
| WO2016188182A1 (en) * | 2015-05-22 | 2016-12-01 | 南通中远船务工程有限公司 | Shaft cover-type device and method for fully continuous elevation of spud leg of offshore turbine installer vessel |
| CN106368200A (en) * | 2016-08-25 | 2017-02-01 | 武汉船用机械有限责任公司 | Hydraulic plug pin lifting system of self-elevating offshore platform |
| CN106495053A (en) * | 2016-12-28 | 2017-03-15 | 武汉武船重型装备工程有限责任公司 | A kind of hydraulic lifting work platformses and lifting platform method |
| CN106592560A (en) * | 2016-10-31 | 2017-04-26 | 武汉船用机械有限责任公司 | Hydraulic bolt lifting device |
| CN106592557A (en) * | 2016-10-31 | 2017-04-26 | 武汉船用机械有限责任公司 | Continuous hydraulic inserted pin lifting device |
| CN107059830A (en) * | 2017-04-27 | 2017-08-18 | 上海衡拓船舶设备有限公司 | Enter the optimal control method of hydraulic bolt jacking system for single step |
| CN108018843A (en) * | 2017-12-08 | 2018-05-11 | 中国铁建港航局集团有限公司 | A kind of device and method continuously lifted by double acting beam |
| CN109371949A (en) * | 2018-10-18 | 2019-02-22 | 广东精铟海洋工程股份有限公司 | A kind of rack-and-pinion bolt jacking system and its elevating method |
| CN113463605A (en) * | 2021-09-02 | 2021-10-01 | 南通中舟风电工程技术有限公司 | Plug pin type continuous lifting system for wind power platform |
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| US2932486A (en) * | 1955-07-20 | 1960-04-12 | De Long Corp | Jacking mechanism and controls |
| US4411408A (en) * | 1980-10-27 | 1983-10-25 | The Offshore Company | Jack-up platform apparatus |
| CN101827979A (en) * | 2007-07-30 | 2010-09-08 | 荷兰格斯特公司 | Jacking system |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016188182A1 (en) * | 2015-05-22 | 2016-12-01 | 南通中远船务工程有限公司 | Shaft cover-type device and method for fully continuous elevation of spud leg of offshore turbine installer vessel |
| CN105672236A (en) * | 2016-04-14 | 2016-06-15 | 上海尚鉴机械工程有限公司 | Pin type rapid lifting mechanism and lifting method thereof |
| CN105804038A (en) * | 2016-05-16 | 2016-07-27 | 西伯瀚（上海）海洋装备科技有限公司 | Double-layer dynamic ring beam hydraulic plug pin type cylindrical pile leg continuous lifting device |
| CN105887787A (en) * | 2016-05-30 | 2016-08-24 | 上海振华重工(集团)股份有限公司 | Hydraulic pin hole type lifting system |
| CN105862699A (en) * | 2016-06-13 | 2016-08-17 | 广东精铟海洋工程股份有限公司 | Pin type continuous lifting system for offshore platform and lifting method thereof |
| CN105862699B (en) * | 2016-06-13 | 2017-05-10 | 广东精铟海洋工程股份有限公司 | Pin type continuous lifting system for offshore platform and lifting method thereof |
| CN106087931A (en) * | 2016-07-15 | 2016-11-09 | 武汉船用机械有限责任公司 | Combined type screw thread lowering or hoisting gear |
| CN106368200A (en) * | 2016-08-25 | 2017-02-01 | 武汉船用机械有限责任公司 | Hydraulic plug pin lifting system of self-elevating offshore platform |
| CN106592560A (en) * | 2016-10-31 | 2017-04-26 | 武汉船用机械有限责任公司 | Hydraulic bolt lifting device |
| CN106592557A (en) * | 2016-10-31 | 2017-04-26 | 武汉船用机械有限责任公司 | Continuous hydraulic inserted pin lifting device |
| CN106495053A (en) * | 2016-12-28 | 2017-03-15 | 武汉武船重型装备工程有限责任公司 | A kind of hydraulic lifting work platformses and lifting platform method |
| CN106495053B (en) * | 2016-12-28 | 2020-01-07 | 武汉武船重型装备工程有限责任公司 | Hydraulic lifting working platform and platform lifting method |
| CN107059830A (en) * | 2017-04-27 | 2017-08-18 | 上海衡拓船舶设备有限公司 | Enter the optimal control method of hydraulic bolt jacking system for single step |
| CN107059830B (en) * | 2017-04-27 | 2018-12-04 | 上海衡拓船舶设备有限公司 | For single step into the optimal control method of hydraulic bolt jacking system |
| CN108018843A (en) * | 2017-12-08 | 2018-05-11 | 中国铁建港航局集团有限公司 | A kind of device and method continuously lifted by double acting beam |
| CN109371949A (en) * | 2018-10-18 | 2019-02-22 | 广东精铟海洋工程股份有限公司 | A kind of rack-and-pinion bolt jacking system and its elevating method |
| CN113463605A (en) * | 2021-09-02 | 2021-10-01 | 南通中舟风电工程技术有限公司 | Plug pin type continuous lifting system for wind power platform |
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